Engine-Codes.com
Engine-Codes – Lexus – U0124 Lexus

U0124 Lexus Code - Lost Communication with Lateral Acceleration Sensor Module

Quick Answer

When the diagnostic code U0124 appears on a Lexus vehicle, it indicates that there is a communication problem with the lateral acceleration sensor module. Common causes include Faulty lateral acceleration sensor module, Wiring issues or loose connections, Software glitches in the vehicle's computer system. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
U0124 Lexus indicates Lost Communication with Lateral Acceleration Sensor Module.
Common causes
Common causes include Faulty lateral acceleration sensor module, Wiring issues or loose connections, Software glitches in the vehicle's computer system.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Sep 11, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code U0124 Lexus Description

When the diagnostic code U0124 appears on a Lexus vehicle, it indicates that there is a communication problem with the lateral acceleration sensor module. This sensor is responsible for measuring the vehicle's lateral acceleration during turns or changes in direction. The lateral acceleration sensor module communicates this data to the vehicle's onboard computer system, which uses it to make adjustments to various systems such as the stability control, traction control, and anti-lock braking systems.

OBDII Code U0124 Lexus - Lost Communication with Lateral Acceleration Sensor Module
U0124 Lexus Code - Lost Communication with Lateral Acceleration Sensor Module

Common Causes of U0124 Lexus

  1. Faulty lateral acceleration sensor module
  2. Wiring issues or loose connections
  3. Software glitches in the vehicle's computer system
  4. Problems with the vehicle's onboard communication network
  5. Water or moisture damage to the sensor module

Symptoms of U0124 Lexus

  1. Loss of stability control or traction control
  2. Illumination of the ABS or stability control warning lights
  3. Erratic or unpredictable handling during turns
  4. Increased stopping distances during braking
  5. Difficulty maintaining control during emergency maneuvers

How to Fix U0124 Lexus

  1. Diagnose the issue using a professional diagnostic scanner to pinpoint the exact cause of the communication loss with the lateral acceleration sensor module.
  2. Inspect the wiring and connections related to the sensor module for any damage, corrosion, or loose connections. Repair or replace as needed.
  3. Test the lateral acceleration sensor module itself for proper functionality. Replace if found to be faulty.
  4. Check for any software updates or recalibrations needed for the vehicle's computer system to ensure proper communication with the sensor module.
  5. Clear the U0124 code from the vehicle's computer system and perform a test drive to confirm that the issue has been resolved.

Cost to Fix U0124 Lexus

The cost of repairing the U0124 code on a Lexus vehicle can vary depending on the specific cause of the issue and the labor rates in your area. On average, the repair costs for this type of communication problem with a sensor module can range from $200 to $500, including parts and labor. Keep in mind that additional costs may apply if other components need to be replaced or if software updates are required. It is recommended to consult with a qualified mechanic or dealership for a more accurate cost estimate based on your vehicle's make and model.

What does this mean?

Tech Notes for U0124 Lexus

When there are problems with the way different systems in a vehicle communicate with each other using a technology called Controller Area Network (CAN) communication, Diagnostic Trouble Codes (DTC) are displayed. These codes can be caused by issues with the main bus or branch of the communication network, or with the Electronic Control Units (ECUs) and sensors that make up the different systems. If you see code for both the CAN communication problems and internal or power source problems at the same time, you should focus on fixing the internal or power source problems first.

Need more information about the U0124 Lexus code?

Need more information on how to fix the U0124 Lexus code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U0124 Lexus code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about U0124 Lexus Code

1. What are the common symptoms of OBDII code U0124 in a Lexus related to Lost Communication with Lateral Acceleration Sensor Module?

- Common symptoms include the ABS warning light, traction control light, or stability control light illuminating on the dashboard. The vehicle may also experience issues with the ABS system or stability control system.

2. What are the possible causes of the OBDII code U0124 in a Lexus?

- Possible causes include a malfunctioning lateral acceleration sensor module, damaged wiring or connectors leading to the sensor, or communication issues within the vehicle's network.

3. How can I diagnose the issue causing the OBDII code U0124 in my Lexus?

- Diagnosing the issue may involve using a diagnostic scanner to retrieve the specific trouble codes, checking the lateral acceleration sensor module for proper functionality, inspecting wiring and connectors for damage, and testing communication between modules.

4. Can I continue driving my Lexus with the U0124 code related to Lost Communication with Lateral Acceleration Sensor Module?

- It is not recommended to drive the vehicle with this code present, as it can affect the operation of important safety systems like ABS and stability control. It is advised to address the issue promptly.

5. How can I repair the U0124 code in my Lexus caused by Lost Communication with Lateral Acceleration Sensor Module?

- Repair options may include replacing the lateral acceleration sensor module, repairing or replacing damaged wiring and connectors, resetting the codes, or reprogramming the affected modules.

6. Will resetting the trouble codes make the U0124 code related to Lost Communication with Lateral Acceleration Sensor Module disappear permanently?

- Resetting the codes may temporarily clear the warning lights, but if the underlying issue causing the code is not resolved, the code is likely to reappear once the system detects the problem again.

7. Is the U0124 code in a Lexus related to Lost Communication with Lateral Acceleration Sensor Module a common issue?

- While it may not be as common as some other OBDII codes, issues with communication or malfunction of the lateral acceleration sensor module can occur in Lexus vehicles, particularly in older models or those with high mileage.

8. Can a DIY enthusiast repair the U0124 code in a Lexus or is it best left to professionals?

- Depending on the individual's skill level and access to tools, some DIY enthusiasts may be able to diagnose and repair the issue causing the U0124 code. However, due to the complexity of electronic systems in modern vehicles, it is often recommended to seek professional help for accurate diagnosis and repair.

9. Are there any preventive maintenance tips to avoid encountering the U0124 code in a Lexus?

- Regular inspection of the vehicle's sensors, wiring, and connectors can help prevent issues like the U0124 code. Keeping up with scheduled maintenance and addressing any warning lights promptly can also help prevent more serious problems.

10. How long does it typically take to repair the U0124 code related to Lost Communication with Lateral Acceleration Sensor Module in a Lexus?

- The repair time can vary depending on the exact cause of the issue. Simple repairs like replacing a sensor or connector may take a few hours, while more complex issues requiring module reprogramming or extensive wiring repair could take longer and may require professional expertise.

Discuss the causes and fixes for U0124 Lexus OBDII Code

Submit a New Comment

Code U0124 Lexus comments

No comments found for this page.